Theorem 2.1  ([1]})
Let \(({\cal E}^{(1)},{\cal F}^{(1)})\)  and \(({\cal E}^{(2)},{\cal F}^{(2)})\)  be
Dirichlet forms on \(L^2(X;m)\)  such that
\({\cal F}^{(2)}\subset {\cal F}^{(1)}\) .
If there exists \(C>0\)  such that
\({\cal E}^{(1)}(u,u)\le C{\cal E}^{(2)}(u,u) \quad \text{for any $u\in {\cal F}^{(2)}$,}\) 
